User Manual

3UG4.1 line monitoring relay
6.7 3UG4617 / 3UG4618 line monitoring relays
3UG4 / 3RR2 monitoring relays
146 Manual, 02/2013, NEB927043002000/RS-AA/002
6.7.4 Diagnostics
6.7.4.1 Indications on the display
Display information
The display is divided into three different areas.
23
1
① Voltage measured value or fault symbol
② Type of monitoring
③ Symbols of the change-over contacts
Meaning of the information on the display
Note
Indications in the event of a fault
The symbols on the display flash to indicate an error.
The following statuses and line faults are indicated as a diagnostics message with flashing
symbols:
Display
area
Symbol Meaning
①
200V Measured voltage is displayed
①
L
Flashing: Phase failure detected
①
Asym Flashing: Line voltage asymmetry detected
②
Monitoring for voltage overshoot
②
Monitoring for voltage undershoot
②
Range monitoring (monitoring for voltage overshoot and undershoot)
②
Voltage is in correct range
②
A voltage overshoot has occurred
②
A voltage undershoot has occurred